You’re kind of behind the times, the NRA is pretty vilified in gun forums etc for being pretty ineffectual. They’re kind of coasting on boomer memberships or private ranges/events that require NRA membership or NRA events that… You guessed it, find a way to require membership. There are a lot of other advocacy groups that are more legal battle based.
OnX hunt for walking around is probably the best there is if you’re trying to know what is public vs private land etc.